When you ask "What number is halfway between 67 and 870?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=67 and Y=870.
To find the number halfway between 67 and 870, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 67 and 870 into our formula, we get:
(67 + 870)/2 = 468.5
Thus, the number halfway between 67 and 870 is 468.5.
To check that our answer is correct, we subtract 67 from 468.5 and subtract 468.5 from 870 and compare the two numbers:
468.5 - 67 = 401.5
870 - 468.5 = 401.5
As you can see, the halfway number is 401.5 higher than 67 and 401.5 lower than 870. Therefore, our halfway between answer of 468.5 above is correct.
Halfway Between
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Halfway Between 67 and 871
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